Question

a Godown is 50 M long 40 m high. find the cost of whitewashing it's four wall and ceiling at ₹20 per square metre.

Answer 1

HEY MATE HERE IS YOUR ANSWER ❤️❤️❤️❤️

length=50m
breadth=40m
height=10m

lateral surface area=2(l+b)h

=2(50+40)10
=1800m²

Area of sealing=l×b
=50×40m²

Area of white washed = L.S.A+ Area of the ceiling

=1800+200
=200m²


Rate of white washing=₹20

Money to be spend= total area to be white washed × rate

=2000×20

₹40000

total cost=₹ 40000.


Hope it's helpful ❤️❤️❤️❤️❤️

Answer 2

$\huge \purple {AnsWer}$

Dimension of godown

⠀L = 50m⠀⠀B = 40m ⠀H = 10m

⠀⠀Area of 4 walls = 2(L+B) × H

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 2 ( 50 + 40 )

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀= ( 2 × 90 × 10 )m²

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 1800m²

Area of celling = ( L×B )sq.unit

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= ( 50 × 40 ) m²

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀= 2000m²

⠀⠀Total area = 2000 + 1800

⠀⠀⠀⠀⠀⠀= 3800m²

Total cost = Total area × Cost per m²

⠀⠀⠀⠀⠀⠀= 3800 × 20

⠀⠀⠀⠀⠀⠀= ₹ 76000

So your answer is ₹ 76000.